Plastic Containing Assembly Having Filler Material Arrangement for Welding

Abstract

A plastic containing assembly is provided with a container including a containing member, a front reduced section formed with the containing member, and a shoulder between a front end of the containing member and the reduced section; and a hollow, externally threaded adaptor including an outer protrusion put on the reduced section, an inner projection inserted into both the front end of the containing member and the reduced section, a groove on an outer surface of the projection, a filler member between the groove and the protrusion, and an axial passage communicating with an open front end of the adaptor and the projection respectively. An ultrasonic welding machine may apply high-frequency ultrasonic acoustic vibrations to the filler member and melt same to join the shoulder, thereby forming a first joining layer; and melt a joining portion of the reduced section and the protrusion, thereby forming a second joining layer.

What is claimed is: 
     
         1 . A plastic containing assembly comprising:
 a container including a containing member having an internal space, a front reduced section formed with the containing member, and a shoulder between a front end of the containing member and the reduced section; and   a hollow, externally threaded adaptor including an outer protrusion configured to put on the reduced section, an inner projection adapted to insert into both the front end of the containing member and the reduced section, a groove on an outer surface of the projection, a filler member between the groove and the protrusion, and an axial passage communicating with an open front end of the adaptor and the projection respectively;   wherein an ultrasonic welding machine applies high-frequency ultrasonic acoustic vibrations to the filler member and melts same to join the shoulder, thereby forming a first joining layer; and   wherein the ultrasonic welding machine applies high-frequency ultrasonic acoustic vibrations to melt a joining portion of the reduced section and the protrusion, thereby forming a second joining layer.   
     
     
         2 . The plastic containing assembly of  claim 1 , wherein the filler member includes at least one projecting filler material element of triangular section. 
     
     
         3 . The plastic containing assembly of  claim 1 , wherein the ultrasonic welding machine applies high-frequency ultrasonic acoustic vibrations to melt a joining portion of the front end of the containing member and the groove, thereby forming a third joining layer. 
     
     
         4 . The plastic containing assembly of  claim 1 , wherein a melting point of the container is different from that of the adaptor. 
     
     
         5 . The plastic containing assembly of  claim 1 , wherein a melting point of the container is the same as that of the adaptor.